Definition of dvd Dvd
/diˌviˌdiˈ/ - [deeveedee] -
We found 3 definitions of dvd from 3 different sources.
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What does dvd mean?
WordNet
Wiktionary 
- dvd (Noun)
An optical disc , typically one holding a commercially-recorded movie.
Wikipedia 
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A DVD (sometimes called a Digital Versatile Disc or a Digital Video Disc) is an optical disc capable of storing up to 4.7 GB of data as opposed to the 700 MB that a CD can hold. DVDs are often used to store movies at a higher video and sound quality than a VHS. A plus of using a DVD for a video is the ability to have interactive menus and bonus features such as deleted scenes and commentaries.
There are also 8 cm DVDs with a storage capacity of 1.5 GB.
The capacity of a DVD-ROM can be visually determined by noting the number of data sides, and looking at the data side(s) of the disc. Double-layered sides are usually gold-colored, while single-layered sides are usually silver-colored, like a CD. One additional way to tell if a DVD contains one or two layers is to look at the center ring on the underside of the disc. If there are two barcodes, it is a dual layer disc. If there is one barcode, there is only one layer.
DVD data storing.
Both CD and DVD disks have equal sizes (diameter, thickness etc.). However, the amount of information they can store is different. These disks are made of the same materials and have the same methods of production.
CDs and DVDs use the same way of keeping information. Both CDs and DVDs have pits and bumps on the data track (the data track represents a path which has certain information). The information is read by a laser.
A DVD disk has several layers, which are made of plastic. All layers have a thickness of 1.2 millimeters. An injection used on
